coal uncovering中文,coal uncovering的意思,coal uncovering翻译及用法

2026-04-12 20:17 浏览次数 18

coal uncovering

揭煤

coal uncovering 例句

英汉例句

  • Study on proper layout parameters of the gas drainage drills of outburst prevention in rock cross-cut coal uncovering

    石门揭煤防突抽放瓦斯鉆孔合理布置参数的研究

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